Process of making blanks.



F. B. BELL ss OF MAKING BLANKS.

1,2423%? Patented Oct. 9,1917.

FRANK B. BELL, OF CHICAGO HEIGHTS, ILLINOIS, ASSIGNOR OF ONE- HALF 'IOFREDrC,

' EIDIDILE, OF CHICAGO HEIGHTS, ILLINOIS.

Specification of Letters Eatent. B seme t} Get. 9,1911%,

negates.

. Application filed June 21, 1915. Serial m. 35,273.

To all whom it may concern:

Be it-known that I, FRANK B. BELL, a citizen of the United States,residing in Chicago Heights, in the county of Cook and State ofIllinois, have invented a new and useful Improvement in Processes ofMaking Blanks, of which the following is a specification.

This invention relates in general to the art of making car wheels andmore particularly to the preliminary stages in the construction of carand locomotive wheel tires.

7 It will, however, be manifest as the invention is better understoodthat it has a wider and more general application.

Prior to my invention it has been generally the custom to construct carand locomotive wheel tires and the like by casting a large cylindricalingot through the bottom of a mold. This provides an ingot having asmall central opening at its top, which opening is surrounded bysegregated metal, unfitting the end of the ingot for use in theconstruction of a tire. This metal has ordinarily been re-worked at aconsequent reduction in the output of the equipment and at considerableloss, or if used has resulted in the production of an imperfect andunsafe tire. The ingot is ordinarily cut transversely to provide anumber of ingot parts from which blanks are to be formed, and it is apurpose of this invention to provide a process or method for theconstruction of blanks which will permit the use of the imperfect ingotends without evil efiect upon the tires produced therefrom and withoutrequiring re-melting of these ingot ends.

A further object of the invention is the accomplishment of this end atsmall cost and without the necessity of providing complicated machinery.o

Other objects and advantages of the invention will be apparent as it isbetter understood from the following description when considered inconnection with the accompanying drawing illustrating a preferredembodiment thereof.-

Referring to the drawing,

Figure 1 is a sectional view of an ingot from which the blanks are to bemade;

Fig. 2 is a sectional view of an ingot end portion flattened and readyfor forming into a blank; and I Fig. 3 is a section through a die forpunching the central aperture in the ingot end and showing the finishedblank.

As will be observed in Fig. 1,.the ingot 4, i

which has been poured from the bottom,

possesses the usual pipe cavity or opening 5 in the top, about which isgathered a quantity of imperfect and non-usable metal 6. In accordancewith the usual custom, this ingot is out along lines 7 to form ingotportions from which the blanks are to be constructed. The ingot portions8, which together constitute the lower end and body of the ingot, areformed into blanks without removing an appreciable amount of thematerial, punching being first up and then down and spreading the metalso that merely a thin section is ultimately cut out. The end portion 9is formed into a blank in accordance with my invention by firstfiattening it, as seen in Fig. 2, to close the opening 5, and toconcentrate the imperfect metal 6 as near the. center as possible. Thisflattened end portion is then laid upon a die 8 having an opening 9'with a flaring side wall 10. 'When in-this position a punch 11 ofdiameter equal substantially to the upper end of the opening 9 descendsupon the ingot end and cuts the central part 12 which contains theimperfect metal 6 to form the blank aperture 13 and this withoutspreading any of the metal at the center of the ingot end portion sothat none of the imperfect metal remains in the formed blank. It may bementioned that after the blank is thus formed it is ready for rollinginto a plicated than that needed to -make blanks from the parts 8 of theingot, although itdifiers from this equipment in that a punch which willshear an aperture entirely through the blank is provided instead of apunch removing merely a small section of metal after the greater part ofthe central portion of the blank has been forced into the sides toremain in the finished blank.

It is thought that the invention and many of its attendant advantageswill be understood from the foregoing description, and it will beapparent that various changes may be made in the form, construction andarrangement of the parts without departing from the spirit and scope ofthe claims or sacrificing any of its material advaw tages, the formhereinbefore described being merely a preferred embodiment thereof.

I claim:

1. The process of constructing blanks for car Wheels and car Wheel tiresand the like from an ingot portion having a central imperfection, whichconsists in flattening said ingot to concentrate said imperfection, andpunching an aperture through said blank, said punching removing allimperfect metal.

2. The process of constructing blanks for car Wheels and car Wheel tiresand the like from an ingot having an opening in its end and imperfectmetal about said opening which consists in cutting oif said end,fiattening to close the openlng and concentrate said imperfect metal,and punching to re move said imperfect metal.

3. The process of constructing blanks for car Wheels and car Wheel tiresand the like from an ingot having an opening in its end and imperfectmetal about said opening Which consists in cutting off said end,simultaneously reducing the thickness of the end removed andconcentrating the imperfect metal about its center and punching to forma central opening and remove said imperfect metal.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing W tnesses.

FRANK B. BELL.

Witnesses:

' J. (J. CARPENTER,

ESTHER ABRAMS.

